teej750

What tuners are guys putting on this engine? I keep seeing a tuner being recommended but from who?

What tuner would you suggest ??

Man there is really zero information out there on mods to this 2.7l. I REALLY wish i could change my mind and get a 5.3l. So frustrating. Has anyone even done a tuner on a 2.7l? And will it void the warranty?

Except for the Borla S being wheezy and whiny and the Flowmaster super 10 sounding the best. ALL the others sound almost identical to me. I think the Flowmaster super 10 is the best.

I am just wondering has anyone done ANYTHING to their 4 cylinder, turbo (l3b) engine. I have scoured a couple forums and it seems as if i have the only 2.7l in the US. I really want to improve the sound a little bit if possible, and maybe add a little horsepower. I have been debating muffler, cold air intake, or a programmer. Any ideas or suggestions??

What about just upgrading the muffler? Has anyone at all done this?

Has anyone put a CAI on the Sierra with the 4 cylinder turbo engine. I cant find hardly any information on mods to this engine.